--- title: "alex liu (@alexliu) | Hashnode" description: "I am an Observability Specialist with expertise in the ELK Stack , Elasticsearch, and Jaeger." url: "https://hashnode.com/@alexliu" --- @alexliu # alex liu @alexliu · Joined October 2025 ### [How to Run a Logging System with More Than 100 PB of Data](https://alexliu.hashnode.dev/how-to-run-a-logging-system-with-more-than-100-pb-of-data?utm_source=hashnode&utm_medium=feed) 1 Logging System Key Principles Services can access the logging system via CICD pipelines or other deployment mechanisms. Services may be deployed in Kubernetes, on virtual machines, or on physical machines, and how to upload log can be reconfigure... 3 min read · [alexliu.hashnode.dev](https://alexliu.hashnode.dev/how-to-run-a-logging-system-with-more-than-100-pb-of-data?utm_source=hashnode&utm_medium=feed) [Oct 22, 2025](https://hashnode.com/posts/how-to-run-a-logging-system-with-more-than-100-pb-of-data/68f8be81836dca9f0e5a3d73) ### [Two Observability Articles per Week](https://alexliu.hashnode.dev/two-observability-articles-per-week?utm_source=hashnode&utm_medium=feed) This is an overview of my work in observability, with an emphasis on the Elastic (ELK) stack for log management and Jaeger for distributed tracing. In my role, I am responsible for a logging platform that stores more than 100 PB of data and for a lar... 1 min read · [alexliu.hashnode.dev](https://alexliu.hashnode.dev/two-observability-articles-per-week?utm_source=hashnode&utm_medium=feed) [Oct 20, 2025](https://hashnode.com/posts/two-observability-articles-per-week/68f60479db339f747a63cb1e)